Goodday,
I have a small display so I want to blow the text up.
However, it seems that < font size=7> {{msg.payload}} is the max?
I'm using a pi zero w with a 800x640 display and node red V1.2.6
[{"id":"e0718196.8a6b","type":"ui_text","z":"96135b2b.aa4598","group":"800524ec.9ddd98","order":1,"width":"20","height":"6","name":"Klok","label":"","format":"<font size={{msg.font}}>{{msg.klok}}","layout":"row-center","x":610,"y":440,"wires":[]},{"id":"800524ec.9ddd98","type":"ui_group","name":"Klok Digitaal","tab":"f5d1aa9c.a4fc68","order":1,"disp":false,"width":"20","collapse":false},{"id":"f5d1aa9c.a4fc68","type":"ui_tab","name":"Scherm1","icon":"Wekker","disabled":false,"hidden":true}]